Configure DKIM, SPF, PTR, TLS and all be fineall my mails are going to spam from my domain and need to setting for firewall and mod security is this enough maybe write private message
For firewall you can use Nftables. Like Iptables, but more easier for understanding.all my mails are going to spam from my domain and need to setting for firewall and mod security is this enough maybe write private message
You must set up valid hostname (mx.example.com for example) and valid PTR for your IPv{4,6}.see i am having this error